Chapter 18 : Lost Underpass

Expedition

An earthquake strikes Shinjuku and surrounding Tokyo districts, exposing a long-sealed tunnel beneath Okubo. Fearing enemy access, the Hidora Clan chairman calls an emergency meeting and sends a team to investigate. The tunnels, unstable and near collapse, reveal signs of the past but prove useless as a tactical asset. Inside, they face remnants of former Tojo yakuza. After a tense fight, the team secures the area, ensuring no one can exploit the dangerous, deteriorating passage.